JPS57113543A - Image pickup tube - Google Patents

Image pickup tube

Info

Publication number
JPS57113543A
JPS57113543A JP29881A JP29881A JPS57113543A JP S57113543 A JPS57113543 A JP S57113543A JP 29881 A JP29881 A JP 29881A JP 29881 A JP29881 A JP 29881A JP S57113543 A JPS57113543 A JP S57113543A
Authority
JP
Japan
Prior art keywords
hole
cylindrical
tube
electrode
glass tube
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP29881A
Other languages
Japanese (ja)
Inventor
Saburo Nobutoki
Hideyuki Sakai
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP29881A priority Critical patent/JPS57113543A/en
Publication of JPS57113543A publication Critical patent/JPS57113543A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
    • H01J29/46—Arrangements of electrodes and associated parts for generating or controlling the ray or beam, e.g. electron-optical arrangement
    • H01J29/58—Arrangements for focusing or reflecting ray or beam
    • H01J29/62—Electrostatic lenses
    • H01J29/622—Electrostatic lenses producing fields exhibiting symmetry of revolution
    • H01J29/624—Electrostatic lenses producing fields exhibiting symmetry of revolution co-operating with or closely associated to an electron gun
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2229/00—Details of cathode ray tubes or electron beam tubes
    • H01J2229/48—Electron guns
    • H01J2229/4824—Constructional arrangements of electrodes
    • H01J2229/4827—Electrodes formed on surface of common cylindrical support

Landscapes

  • Image-Pickup Tubes, Image-Amplification Tubes, And Storage Tubes (AREA)

Abstract

PURPOSE:To improve focusing property by forming a cylindrical electrode consisting of conductive film inside a tublar body and by setting a through hole in the tabular body which is within a forming range of the electrode via which through hole electric power is supplied from a leading wire provided outside the tublar body. CONSTITUTION:A plural number of cylindrical electrodes 2c-2g are covered and fixed inside a cylindrical glass tube 6 in vacuum evaporation or spattering process. A through hole 7 is perforated to this glass tube 6 at each position where the cylindrical electrode 2c-2g have been formed. Conductive frit glass is filled inside the through hole 7 and calcinated to form a conductor 8. And, a conducting wire 9 is covered and formed in a long narrow strip to the conductor 8 exposed outside the glass tube 6, so as to supply electricity to each elctrode 2c-2g along the direction of a tube axis. In this way, since a leading wire does not exist inside the tube, generation of aberration due to electric field of leading wire is eliminated and focusing property of each electrode can be improved.
JP29881A 1981-01-07 1981-01-07 Image pickup tube Pending JPS57113543A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP29881A JPS57113543A (en) 1981-01-07 1981-01-07 Image pickup tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP29881A JPS57113543A (en) 1981-01-07 1981-01-07 Image pickup tube

Publications (1)

Publication Number Publication Date
JPS57113543A true JPS57113543A (en) 1982-07-15

Family

ID=11469986

Family Applications (1)

Application Number Title Priority Date Filing Date
JP29881A Pending JPS57113543A (en) 1981-01-07 1981-01-07 Image pickup tube

Country Status (1)

Country Link
JP (1) JPS57113543A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60236443A (en) * 1984-05-10 1985-11-25 Shimadzu Corp Electrostatic lens for charged particles
US5740523A (en) * 1993-06-30 1998-04-14 Shintom Co., Ltd. Radio receiver

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60236443A (en) * 1984-05-10 1985-11-25 Shimadzu Corp Electrostatic lens for charged particles
US5740523A (en) * 1993-06-30 1998-04-14 Shintom Co., Ltd. Radio receiver

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